Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pierre Alfred RouletfiledCriticalPierre Alfred Roulet
Priority to BR6601437UpriorityCriticalpatent/BR6601437U/pt
Publication of BR6601437UpublicationCriticalpatent/BR6601437U/pt